CentSDR

Cent SDR!!!

My interest in SDRs take me to any site matches with SDR key word :)
recently I came across a post in FaceBook page of ( Puiu Alexandru ) yo2ldk.

The article referred to in his post is in Japanese language. Though Google translate it to a comprehensible state, but if it was in English then it would have been better. Any ways the look in the picture is nice and very cute!



Though it is a receiver only and priced around $99+6(shipping) as per yo2ldk, in my view it would be a good addition to SWLs and HAMs' shack.

Specification:

• Frequency: 0.1 to 70 MHz
• Display: 320 x 240 pixels
• Supported modes: CW, LSB, USB, AM, WFM (Stereo)
• Sampling frequency: 48 kHz, 192 kHz
• USB interface: CDC (serial)
• Power supply: USB 5 V 200 mA

Thoughts:

1. WFM bellow 86Mhz in my part that is India is not much useful. So it is desired up to 110MHz. But for HAM use if it can cover up to 150MHz then that will be an asset for every HAM on the moov and companion for every SWL.
2. Should have( I am not sure it has) some mechanism to send raw data to PC for better DSP using GQRX or SDR#
3. If it can be complemented with any add-on board for TX capability then it would be a great.

Thanks
de VU3VFU
ASHOK.

Somuch of water flowed to ocean during my absence

First thing first....

Wish Everybody 

a Happy and Prosperous 

New Year ahead.

Well I was in a hibernation 😄😄😄

During this period I have setup my HAM Radio Station. Equipped with VHF(QYT KT 8900) And HF BITX 40m from VU2ESE Farhan. My antenna is a Inverted V for HF and 0db GP for VHF both are mounted on a 35 feet Bamboo mast.

As VHF is factory built till now it functions well. I have successfully communicated 30 Kilometer air distance on VHF(10Watts and 20 Watts). Further reach is possible but our club members are within this perimeter only.

BITX 40m as it is obtained from VU2ESE is good but only problem is on-board VFO, which drifts with time and while TXing. But I got 58 report from our club members within 30 kilometers. I was received by VU3SUY and VU2PLL but due to drifting VFO my calls were rejected 😀.

For your eyes thirst I am putting some pictures.

UnBoxing QYT KT 8900

BITX and QYT KT 8900 stacked.

My Antenna mast.

The VHF setup is courtesy VU2BPJ. I am very much thankful to him.
The HF setup is assembled and Tested by VU2AOR. I Express my gratitude for his help and advice.
The final boxing is done by my Electronics Guru BUDHANA( SWL Tushar Kanti Mishra).

I also express my sincere thanks toVU2AOR,VU2BPJ, VU2PQS,VU2FRD, VU2DKD and VU2CSF for coordinating testing of my setup.

BACKLOG:
First of all I beg apology for not posting the Compiler Blog in time.
The project is semi complete and working in a minimal sense. I will post the code in a future blog shortly.